linux + ssh висит на SSH2_MSG_KEXINIT отправлено

627
King David

у нас есть некоторые странные проблемы, мы не можем ssh с одного сервера Linux на другой сервер, несмотря на пинг работает

при отладке мы видим, что ssh завис на debug1: SSH2_MSG_KEXINIT отправлено и не достигнуто, SSH2_MSG_NEWKEYS получено

как мы можем это объяснить?

до сих пор мы проверили следующее

порт 22 - открыт (проверено telnet), брандмауэр остановлен, то же самое на iptables

ssh -v 10.12.187.23 OpenSSH_3.6.1p1, SSH protocols 1.5/2.0, OpenSSL 0x0090702f debug1: Reading configuration data /etc/ssh_config debug1: Rhosts Authentication disabled, originating port will not be trusted. debug1: Connecting to localhost [10.12.187.23] port 22. debug1: Connection established. debug1: identity file /cygdrive/c/.ssh/identity type 0 debug1: identity file /cygdrive/c/.ssh/id_rsa type 1 debug1: identity file /cygdrive/c/.ssh/id_dsa type 2 debug1: Remote protocol version 1.99, remote software version OpenSSH_3.6.1p1 debug1: match: OpenSSH_3.6.1p1 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_3.6.1p1 debug1: SSH2_MSG_KEXINIT sent 

другой пример

ssh -vv worker01 OpenSSH_6.6.1, OpenSSL 1.0.1e-fips 11 Feb 2013 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 56: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to worker01 [102.164.35.64] port 22. debug1: Connection established. debug1: permanently_set_uid: 0/0 debug1: identity file /root/.ssh/id_rsa type 1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.6.1 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1 debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000 debug2: fd 3 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent 
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